Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hans Petersen0
Michael Harold Rock0
Date of Patent
September 18, 2007
0Patent Application Number
112859220
Date Filed
November 23, 2005
0Patent Primary Examiner
Patent abstract
The invention provides a new and improved method for the preparation of 5-cyano-phtalid, which is a key intermediate in the preparation of the antidepressant compound citalopram.
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